Method executed by user equipment and user equipment

Abstract

The invention provides a method executed by user equipment and the user equipment, and the method comprises the following steps: according to an instruction of a higher layer, sending an SL PRS resource subset SA to the user equipment, the method comprises the following steps: initializing a set of SL PRS resources corresponding to each SL PRS resource identifier in a set of SL PRS resource identifiers # imgabs1 # contained in a time slot, each belonging to a dedicated positioning resource pool # imgabs0 #, in a resource selection window, excluding zero, one or more SL PRS resources from a subset of SL PRS resources SA, P, and reporting the subset of SL PRS resources SA, P to a higher layer.

Description

Technical Field

[0001] The present disclosure relates to a method performed by a user equipment and the user equipment. Background Art

[0002] In a wireless communication system, information can be exchanged between different communication nodes. Wireless communication can be performed on licensed spectrum and / or unlicensed spectrum. An example of a wireless communication system is a system standardized by 3GPP (3rd Generation Partnership Project), such as a 4G system or its evolution system based on LTE (Long-Term Evolution) wireless access technology, and a 5G system or its evolution system based on NR (New Radio) wireless access technology. In a communication system based on 3GPP specifications, examples of communication nodes may include UE (User Equipment) and base stations (e.g., eNB, also such as gNB). The radio link (radio link) from the base station to the UE can be called a downlink (DL, downlink), the radio link from the UE to the base station can be called an uplink (UL, uplink), and the radio link between UEs can be called a sidelink (SL, sidelink). The interface for wireless transmission and / or reception between the base station and the UE can be called a Uu interface (e.g., an NR-Uu interface based on NR; and an LTE-Uu interface based on LTE). The interface for wireless transmission and / or reception between UEs may be referred to as a PC5 interface (e.g., an NR-PC5 interface based on NR; or an LTE-PC5 interface based on LTE).

[0003] One or more positioning and / or ranging technologies may be supported in a wireless communication system. When positioning and / or ranging a UE, the position (e.g., absolute position; or relative position) and / or direction of the UE may be calculated or estimated based on measurements of downlink signals, or measurements of uplink signals, or measurements of sidelink signals. In order to support communications on licensed and / or unlicensed spectrum, and / or positioning of UE on licensed and / or unlicensed spectrum, a series of issues need to be addressed, such as channel access mechanisms; or structures of physical layer channels and / or signals; or physical layer control information and / or signaling processes (e.g., synchronization processes, or feedback and / or determination mechanisms); or higher layer control information and / or signaling processes; or resource allocation and / or management; or coexistence between different systems.

[0004] Prior Art Literature

[0005] Non-patent literature

[0006] Non-patent document 1: RP-170379, Revision of SI: Study on New Radio Access Technology, 3GPP TSG RAN Meeting #75

[0007] Non-patent document 2: RP-191971, Revised WID: New Radio Access Technology, 3GPPTSG RAN Meeting #85

[0008] Non-patent document 3: RP-190224, Revised SID: Study on NR V2X, 3GPP TSG RAN Meeting #83

[0009] Non-patent document 4: RP-200129, Revised WID on 5G V2X with NR sidelink, 3GPP TSGRAN Meeting #87-e

[0010] Non-patent document 5: RP-202846, Revised WID on NR Sidelink enhancement, 3GPP TSGRAN Meeting #90-e

[0011] Non-patent document 6: RP-222806, Revised WID: NR sidelink evolution, 3GPPTSG RANMeeting#98-e

[0012] Non-patent document 7: RP-182155, Revised SID: Study on NR positioning support", 3GPP TSG RAN Meeting #81

[0013] Non-patent document 8: RP-200218, Revised WID: NR positioning support, 3GPP TSG RAN Meeting #87-e

[0014] Non-patent document 9: RP-210903, Revised WID: NR Positioning Enhancements, 3GPPTSG RAN Meeting #91-e

[0015] Non-patent document 10: RP-222616, Revised SID 0n Study on expanded and improved NR positioning, 3GPP TSG RAN Meeting #97-e

[0016] Non-Patent Document 11: RP-223549, New WID on Expanded and Improved NRPositioning, 3GPP TSG RAN Meeting #98-e Summary of the invention

[0017] In order to solve at least part of the above problems, the present disclosure provides a method performed by a user equipment and a user equipment, in determining a dedicated positioning resource pool The SL PRS resource identifier is from the set When the SLPRS resource subset is set, for a time slot that is not monitored For the resource pool Each resource reservation period (pre) configured in Each SL PRS resource identifier in the time slot The corresponding SL PRS resource combination in the time slot determines a hypothetical The SCI received in the UE is excluded, and all periodic and non-periodic resources indicated by the SCI are excluded. This greatly reduces the probability of conflict with SL PRS resources reserved by other UEs in the resources finally selected for SL PRS transmission, and improves the performance of SL PRS resource selection.

[0018] According to the present disclosure, a method performed by a user equipment is proposed, characterized by comprising: according to an instruction of a higher layer, a SL PRS resource subset S A，P Initializes a resource selection window to contain each resource belonging to a dedicated positioning resource pool. The SL PRS resource identifier set in the time slot A set of SL PRS resources corresponding to each SL PRS resource identifier in the SL PRS resource subset S A，P Exclude zero, one or more SL PRS resources from the corresponding sensing window, where for each time slot that is not monitored in the corresponding sensing window, Each in the resource pool The resource reservation period configured in The SL PRS resource identifier in the time slot corresponds to SL PRS resources in the time slot, and a hypothetical The SCI received from the SL PRS resource subset S indicates the resource reservation period and the SL PRS resource. A，P excluding SL PRS resources overlapping with any aperiodic or periodic SL PRS resource indicated by the SCI, and reporting the resource subset S to a higher layer A，P .

[0019] In addition, according to the present disclosure, a user equipment is proposed, including: a processor; and a memory storing instructions, wherein the instructions execute the above method when executed by the processor.

[0020] Therefore, the present disclosure provides a method for determining a dedicated positioning resource pool. The SL PRS resource identifier is from the set When the SL PRS resource subset is set, for a time slot that is not monitored For the resource pool Each resource reservation period (pre) configured in Each SL PRS resource identifier in the time slot The corresponding SL PRS resource combination in the time slot determines a hypothetical The SCI received in the UE is excluded, and all periodic and non-periodic resources indicated by the SCI are excluded. This greatly reduces the probability of conflict with SL PRS resources reserved by other UEs in the resources finally selected for SL PRS transmission, and improves the performance of SL PRS resource selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other features of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A flowchart corresponding to a method executed by a user equipment according to the first embodiment of the present disclosure is shown.

[0023] Figure 2 A block diagram of a user equipment involved in the present disclosure is shown. DETAILED DESCRIPTION

[0024] The present disclosure is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the present disclosure should not be limited to the specific embodiments described below. In addition, for the sake of simplicity, detailed descriptions of known technologies that are not directly related to the present disclosure are omitted to prevent confusion in the understanding of the present disclosure.

[0025] The following uses the 5G (or NR, or 5G NR) wireless communication system specification formulated by 3GPP and its subsequent evolutionary versions (e.g., 5G Advanced) as an example application environment to specifically describe multiple implementations of the present disclosure. However, it should be noted that the present disclosure is not limited to the following implementations, but is applicable to more other wireless communication systems, such as wireless communication systems after 5G, and 4G mobile communication systems before 5G such as LTE (Long Term Evolution, Long Term Evolution), LTE-Advanced, LTE-Advanced Pro, etc.

[0026] The terms given in the present disclosure may be named differently in different wireless communication systems, but unified terms are used in the present disclosure, and when applied to a specific system, they can be replaced with terms used in the corresponding system.

[0027] In all embodiments and implementations of the present disclosure, unless otherwise specified:

[0028] ●“Node” and “communication node” are interchangeable.

[0029] ●“Node” may refer to a UE, or a network node (eg, a base station), or a communication node in another form.

[0030] ●“Base station” may refer to a 4G base station, such as eNB (E-UTRAN Node B, where E-UTRAN stands for Evolved Universal Terrestrial Radio Access Network); or a 5G base station, such as gNB (a node that provides NR user plane and control plane protocol termination to UE and is connected to the 5G core network through the NG interface), or ng-eNB (a node that provides E-UTRA user plane and control plane protocol termination to UE and is connected to the 5G core network through the NG interface, where E-UTRA stands for Evolved Universal Terrestrial Radio Access); or a base station of other forms.

[0031] ●“Higher layer(s)” (higher layer(s) or upper layer(s)) may refer to one or more protocol layers or protocol sublayers above a reference protocol layer or reference protocol sublayer in a specific protocol stack (e.g., access stratum protocol stack). For example, if the reference protocol layer or reference protocol sublayer is a physical layer (or referred to as “layer 1”), the “higher layer” may refer to a MAC (Medium Access Control) layer, and / or an RLC (Radio Link Control) layer, and / or a PDCP (Packet Data Convergence Protocol) layer, and / or a PC5-RRC (Radio Resource Control) layer, and / or a PC5-S layer, and / or an RRC layer, and / or other protocol layers or protocol sublayers. Unless otherwise specified, the reference protocol layer or reference protocol sublayer is a physical layer. Where no ambiguity arises, the “higher layer” may also be referred to as the “higher layer”.

[0032] ●“Lower layer(s)” may refer to one or more protocol layers or protocol sublayers below a reference protocol layer or reference protocol sublayer in a specific protocol stack. For example, if the reference protocol layer or reference protocol sublayer is the RRC layer, the “lower layer” may refer to the MAC layer, and / or the physical layer; for another example, if the reference protocol layer or reference protocol sublayer is the MAC layer, the “lower layer” may refer to the physical layer. Unless otherwise specified, the reference protocol layer or reference protocol sublayer is the MAC layer. Where no ambiguity arises, the “lower layer” may also be referred to as the “lower layer”.

[0033] ●“Signaling” can refer to signaling at the physical layer, or signaling at a higher layer.

[0034] ● "Configure" may refer to a protocol layer (eg, RRC layer) entity providing configuration information to another protocol layer (eg, physical layer) entity in a communication node (eg, UE).

[0035] ●“Configuration” may refer to a protocol layer (e.g., RRC layer) entity of a communication node (e.g., a base station) providing configuration information to a peer protocol layer entity of another communication node (e.g., a UE) (e.g., transmitting RRC signaling from a base station to a UE, which includes the configuration information; or transmitting PC5-RRC signaling from one UE to another UE, which includes the configuration information).

[0036] ● "Pre-configure" may refer to pre-setting corresponding configuration information in a specific storage location in a communication node (eg, UE), or pre-setting corresponding configuration information in a specific storage location accessible to the UE.

[0037] ● "(Pre)configuration" can mean configuration or pre-configuration.

[0038] ● "Parameter" can refer to a parameter of the physical layer, or a parameter of a higher layer, for example, a parameter (pre-)configured at the RRC layer.

[0039] ● “Number” may refer to “total number”. For example, “the number of subchannels in a resource pool” may refer to the total number of subchannels in the resource pool.

[0040] ● The elements in a set (or a sequence) can be indexed 0, 1, 2, ... in the order in which they appear, or 1, 2, 3, ... in the order in which they appear. For example, the set {t0, t1, ..., t N-1 The elements t0, t1, ..., and t N-1 They may correspond to indexes 0, 1, ..., and N-1 respectively.

[0041] ● A time series (e.g., t0, t1, ..., t N-1 ) or a corresponding set (e.g., {t0, t1, ..., t N-1 The elements in t0 may appear in chronological order, for example, the time corresponding to t0 is earlier than (or not later than) the time corresponding to t1, the time corresponding to t1 is earlier than (or not later than) the time corresponding to t2, and so on.

[0042] ●Δf may represent the subcarrier spacing (SCS) of a carrier (e.g., a DL carrier; another example, a UL carrier; another example, a SL carrier) or a BWP (Bandwidth part; for example, a DL BWP; another example, a UL BWP; another example, a SL BWP). For example, Δf = 15 kHz; another example, Δf = 30 kHz; another example, Δf = 60 kHz; another example, Δf = 120 kHz.

[0043] ●μ can represent the subcarrier spacing configuration (SCS configuration) corresponding to an SCS. For example, μ=0 can correspond to Δf=15kHz; for example, μ=1 can correspond to Δf=30kHz; for example, μ=2 can correspond to Δf=60kHz; for example, μ=3 can correspond to Δf=120kHz.

[0044] ●“Symbol” may refer to an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0045] ●A resource can correspond to one or more of the following:

[0046] ■ One or more parameters in the time domain, for example, the starting symbol of the resource; another example, the starting time slot of the resource; another example, the number of symbols occupied by the resource; another example, the number of time slots occupied by the resource.

[0047] ■One or more parameters in the frequency domain. For example, the starting subchannel of the resource; another example, the starting RB (resource block) of the resource; another example, the starting subcarrier of the resource; another example, the number of subchannels occupied by the resource; another example, the number of RBs occupied by the resource; another example, the number of subcarriers occupied by the resource.

[0048] ■ One or more parameters in the code domain, for example, a cyclic shift value or a corresponding cyclic shift index corresponding to the resource; or another example, a cyclic shift pair value or a corresponding cyclic shift pair index corresponding to the resource.

[0049] ■ One or more parameters in the spatial domain. For example, the layer corresponding to the resource, where a "layer" may refer to a MIMO (Multiple Input Multiple Output) layer.

[0050] ● A "layer" may refer to one of the one or more layers to which a TB (Transport Block) is mapped in spatial multiplexing. The mapping may also be considered as the mapping of a codeword corresponding to the TB to the one or more layers.

[0051] ●“RB” may refer to PRB (physical resource block), or VRB (virtual resource block), or CRB (common resource block), or IRB (Interlaced Resource Block); accordingly, “RB index” may refer to PRB index, or VRB index, or CRB index, or IRB index.

[0052] ● “Number” and “index” can be interchanged. For example, the number of an RB can also be called the index of the RB. For another example, “numbering an RB as 0” can also be expressed as “indexing an RB as 0”.

[0053] ● An element in a sequence (or array, or list, or set, etc.) can be represented by its index. For example, an RB with an index of 0 can be called "RB0".

[0054] ●The index of an object (e.g., a subcarrier, a time slot, a cyclic shift, etc.) (e.g., the index of the object in a sequence, or an array, or a list, or a set) can be used as the "identifier" (ID) of the object.

[0055] ●In signaling, the object can be indicated by an object index.

[0056] If no corresponding quantity is specified when referring to an object, the number of the object may be one or more. For example, in "perform transmission on a channel", the "transmission(s)" may correspond to one transmission or multiple transmissions.

[0057] ●Δ(x1, x2) can represent the offset between x1 and x2 (offset between x1 and x2; or, "offset of x2 with respect to x1"; or, "offset from x1 to x2", offset from x1 to x2), wherein x1 and x2 can be the values ​​of two comparable parameters (or variables), or can be two possible values ​​of a parameter (or variable). For example, if x1 and x2 are two time slots in a resource pool, Δ(x1, x2) can be defined as the difference between the time slot index corresponding to the time slot x2 and the time slot index corresponding to the time slot x1, wherein the time slot index can be a physical time slot index, or a logical time slot index (for example, the index of the corresponding time slot in the time slot set of the resource pool).

[0058] • The offset between two subcarriers may refer to the offset between the center frequencies of the two subcarriers.

[0059] ●Modulo Operation can be defined as r≡a mod N, where

[0060] ■r is the remainder.

[0061] ■a=N×q+r,where . q can be called the integer quotient of a and N.

[0062] ■0≤r<|N|.

[0063] ● Round operation can be expressed as b=round(a), where b can be defined as the integer closest to a. If there are two integers closest to a, b can be defined as the larger of the two integers, or as the smaller of the two integers.

[0064] ●A "physical time slot" may refer to a time slot belonging to a physical time slot set, wherein the physical time slot set may be all time slots in a continuous period of time (for example, a frame period with a duration of 1024 frames); the physical time slots in the physical time slot set may be indexed in chronological order as 0, 1, ...

[0065] ●In the time domain, a "frame" (or "radio frame") can refer to a system frame (the corresponding frame number can be called a system frame number, SFN) or a direct frame (the corresponding frame number can be called a direct frame number, DFN). A frame period (for example, denoted as T FNP ) may correspond to a predefined or (pre)configured parameter, or may be determined based on one or more predefined or (pre)configured parameters, for example, T FNP = 1024 frames, and accordingly, the 1024 frames in the frame period can be indexed as 0, 1, ..., 1023 in chronological order. The frame period based on the system frame can be called an "SFN cycle" (SFN cycle), and the frame period based on the direct frame can be called a "DFN cycle" (DFN cycle). The duration of each frame can be T f = 10 milliseconds, which may contain 10 subframes, where the duration of each subframe is T sf = 1 millisecond. Each subframe can contain time slots, for example, The index of a time slot in a subframe can be recorded as The index of a time slot in a frame can be written as in, can be equal to 10.2 μ The time slot index in a frame period can be recorded as in Can be equal to (For example, 1024·(10·2 μ )).

[0066] ● Round operation can be expressed as b=round(a), where b can be defined as the integer closest to a. If there are two integers closest to a, b can be defined as the larger of the two integers, or as the smaller of the two integers.

[0067] ● A bit string of size (or "length") L bits (e.g., 'b0b1...b L-1 '), the leftmost bit (i.e., b0) can correspond to the most significant bit, and accordingly, the rightmost bit (i.e., b L-1 ) may correspond to the least significant bit.

[0068] ● A bit string of size (or "length") L bits (e.g., 'b0b1...bL-1 '), the leftmost bit (i.e., b0) may correspond to the least significant bit, and accordingly, the rightmost bit (i.e., b L-1 ) can correspond to the most significant bit.

[0069] ●“Sidewalk” can refer to NR sidewalk or LTE sidewalk.

[0070] ●“Carrier” can refer to a sidecarrier, an uplink carrier, or a downlink carrier.

[0071] ●“Bandwidth segment” can refer to a sidelink bandwidth segment, or an upstream bandwidth segment, or a downstream bandwidth segment.

[0072] ●“Resource pool” may refer to the sideline resource pool.

[0073] ●A "sidelink resource" may refer to a resource that can be used for sidelink transmission, for example, a time-frequency resource, wherein the time-frequency resource may correspond to one or more symbols (or, one or more time slots) in the time domain and may correspond to one or more subchannels (or, one or more resource blocks; or, one or more subcarriers) in the frequency domain.

[0074] ●A "sidelink time slot" may refer to a time slot configured with sidelink resources (e.g., a time slot in a resource pool). The "sidelink resources" may include or not include resources for specific purposes, wherein the "resources for specific purposes" may be resources used for synchronization procedures, such as resources used to transmit S-SS / PSBCH (S-SS / PhysicalSidelink Broadcast CHannel, or Sidelink-Synchronization Signal / PhysicalSidelink Broadcast CHannel) blocks.

[0075] ●A "logical time slot" may refer to a time slot in a time slot set belonging to a resource pool, wherein the time slot set may be all time slots belonging to the resource pool in a continuous period of time (for example, a frame period with a duration of 1024 frames); the logical time slots in the time slot set may be indexed in chronological order as 0, 1, ...

[0076] ●A "logical time slot" may refer to a time slot that can be configured as a set of time slots belonging to a resource pool.

[0077] ●A "sideways time slot" may refer to a time slot in a set of time slots belonging to a resource pool.

[0078] ●A "sidetrack time slot" may refer to a time slot that may be configured as a set of time slots belonging to a resource pool.

[0079] ●A "sidelink transmission" may correspond to the transmission of a physical channel used for sidelink, for example, the physical channel may be PSCCH (Physical Sidelink Control Channel), or PSSCH (Physical Sidelink Shared Channel), or PSFCH (Physical Sidelink Feedback Channel), or PSBCH (Physical Sidelink Broadcast Channel), or other physical channels.

[0080] ●A "sidelink transmission" may correspond to the transmission of a physical signal for the sidelink, for example, the physical signal may be S-PSS (Sidelink primary synchronization signal), or S-SSS (Sidelink secondary synchronization signal), or DMRS (or "DM-RS", Demodulation reference signals), or CSI RS (or "CSI-RS", Channel-state information reference signal), or PT RS (or "PT-RS", Phase-tracking reference signals), or other physical signals.

[0081] ●A "sideline transmission" may correspond to the transmission of more than one physical channel or physical signal multiplexed (eg, time division multiplexing; or frequency division multiplexing; or multiplexed in other ways) in the same sideline resource (eg, the same time slot). For example, an "S-SS / PSBCH block transmission" (or called an "S-SSB transmission") may correspond to the transmission of an S-PSS, an S-SSS, and a PSBCH multiplexed in the same time slot, and the corresponding resource multiplexing pattern may be recorded as "S-PSS / S-SSS / PSBCH"; a "PSCCH / PSSCH transmission" (or called a "PSSCH / PSCCH transmission") may correspond to the transmission of a PSCCH and an associated PSSCH multiplexed in the same time slot, and the corresponding resource multiplexing pattern may be recorded as "PSCCH / PSSCH" (or called "PSSCH / PSCCH"); a "PSCCH / SL PRS transmission" (or called a "SL PRS / PSCCH transmission") may correspond to the transmission of a PSCCH and an associated SL PRS multiplexed in the same time slot, and the corresponding resource multiplexing pattern may be recorded as "PSCCH / SL PRS"; a "PSCCH / PSSCH / SL A "PSCCH / PSCCH / SL PRS transmission" (or called a "PSSCH / PSCCH / SL PRS transmission") can correspond to the transmission of a PSCCH, a PSSCH associated with the PSCCH, and an SLPRS associated with the PSCCH multiplexed in the same time slot, and the corresponding resource multiplexing mode can be recorded as "PSCCH / PSSCH / SL PRS" (or called "PSSCH / PSCCH / SL PRS").

[0082] ● Sidelink Control Information (SCI) carried in a sidelink transmission (e.g., PSCCH; or PSSCH; or PSCCH / PSSCH) may correspond to “one SCI”, where the SCI may refer to the first-stage SCI (1 st -stage SCI), or second-stage SCI (2 nd -stage SCI), or the first-stage SCI and its associated second-stage SCI.

[0083] ● An SCI with a corresponding SCI format X carried in a sidelink transmission (eg, PSCCH; or PSSCH; or PSCCH / PSSCH) may be referred to as "an SCI format X." For example, a UE may receive an SCI format 1-A in a time slot.

[0084] ●A sidelink grant can be a sidelink dynamic grant, a sidelink configured grant, or any other form of sidelink grant.

[0085] ●A "sidelink configuration grant" can be a "type 1 sidelink configured grant" (type1 sidelink configured grant), or a "type 2 sidelink configured grant" (type2 sidelink configured grant), or any other form of sidelink configuration grant.

[0086] ●The "release" operation on a side configuration permission may also be referred to as the "deactivation" operation on the side configuration permission.

[0087] ●“Dynamic sidelink grant” and “dynamic sidelink grant” are interchangeable.

[0088] ●“Sidelink configuration grant” and “configured sidelink grant” are interchangeable.

[0089] ●“Type 1 sidelink configuration grant” and “sidelink configured grant type 1” are interchangeable.

[0090] ●“Type 2 sidelink configuration grant” and “sidelink configured grant type 2” are interchangeable.

[0091] ●A "sidelink identity" (sidelink ID) can refer to a layer 1 sidelink identifier or a layer 2 sidelink identifier.

[0092] ●A "destination identifier" (destination ID) may refer to a sideline identifier. For example, a destination identifier indicated in a multicast transmission may be used to identify a group corresponding to the multicast transmission; for another example, a destination identifier indicated in a broadcast transmission may be used to identify a service corresponding to the broadcast transmission; for another example, a destination identifier indicated in a unicast transmission may be used to identify an intended receiving UE of the unicast transmission (for example, the destination identifier may be a source identifier of the intended receiving UE).

[0093] A source ID may be a sideline identifier. For example, a source ID indicated in a unicast (or multicast, or broadcast) transmission may be used to identify the UE that performs the transmission.

[0094] A priority level can correspond to a priority value. For example, a priority level can correspond to a priority value of 0, and another priority level can correspond to a priority value of 1.

[0095] ●A priority level may correspond to a priority value in one or more protocol layers (or protocol sublayers), wherein the corresponding priority values ​​in different protocol layers (or protocol sublayers) may be equal or unequal. For example, a priority level may correspond to a priority value of 0 at the physical layer and a priority value of 1 at a higher layer; for another example, another priority level may correspond to a priority value of 1 at the physical layer and a priority value of 2 at a higher layer.

[0096] ● The relationship between the priority order and the corresponding priority value may be: as the priority value increases, the priority (or "priority order") decreases. For example, if the priority values ​​corresponding to the priorities associated with the first side transmission and the second side transmission are 0 and 1 respectively, the priority of the first side transmission is higher than the priority of the second side transmission.

[0097] ● The relationship between the priority order and the corresponding priority value may be: as the priority value increases, the priority (or referred to as "priority order") increases. For example, if the priority values ​​corresponding to the priorities associated with the first side transmission and the second side transmission are 0 and 1 respectively, the priority of the first side transmission is lower than the priority of the second side transmission.

[0098] ● "Positioning" may refer to one or more functions for obtaining information including the location of a UE, for example, determining the location information of a UE; for example, determining the distance between two UEs. "Positioning" may include "ranging".

[0099] ●A “positioning resource pool” can refer to a “side positioning resource pool”.

[0100] ●A “target UE” may refer to a UE that is being positioned and / or ranging (or referred to as a “device that is being positioned and / or ranging”).

[0101] ●An “anchor UE” may refer to a UE that provides support for positioning and / or ranging of a target UE (or referred to as “a device that provides support for positioning and / or ranging of a target UE”).

[0102] ●A "server UE" may refer to a UE that can provide services based on side-by-side positioning and / or ranging, including functions such as positioning method determination, positioning assistance information release, and location information calculation. A server UE can interact with other UEs through the PC5 interface. A server UE can be a target UE, an anchor UE, or another UE.

[0103] The positioning-related reference signal transmitted and / or received on the sidelink may be referred to as SLPRS (or “SL-PRS”, Sidelink Positioning Reference Signal).

[0104] The resources corresponding to an SL PRS transmission (for example, time-frequency resources) can be called an SL PRS resource (SL PRS resource, or called "SL PRS transmission resource", SL PRS transmission resource, or called "SL PRS transmission occasion resource", SL PRS transmission occasion resource). An SL PRS resource can correspond to a continuous frequency domain resource (for example, one or more continuous RBs; for example, one or more continuous subchannels) and a continuous time domain resource (for example, one or more continuous symbols in a time slot), wherein the SLPRS resource can occupy the same or different subcarrier subsets in the one or more continuous RBs (or, the one or more continuous subchannels) in different symbols. For example, an SL PRS resource may correspond to 4 consecutive symbols in the time domain and 50 consecutive RBs in the frequency domain, wherein the SL PRS resource may occupy a subcarrier set {0, 4, 8}, {2, 6, 10}, {1, 5, 9}, and {3, 7, 11} in each of the 50 RBs in the first, second, third and fourth symbols of the 4 symbols, respectively; such a RE (resource element) pattern occupying 1 subcarrier in every 4 consecutive subcarriers may be called a comb-like pattern with a "comb size" of 4, for example, the comb-like pattern may be called a Comb-4 pattern. In addition, one or more other SL PRS resources can be multiplexed in the four symbols and the 50 RBs. For example, the second SL PRS resource can occupy the subcarrier sets {1, 5, 9}, {3, 7, 11}, {2, 6, 10}, and {0, 4, 8} in each of the 50 RBs in the first, second, third and fourth symbols of the four symbols, respectively; for another example, the third SL PRS resource can occupy the subcarrier sets {2, 6, 10}, {0, 4, 8}, {3, 7, 11}, and {1, 5, 9} in each of the 50 RBs in the first, second, third and fourth symbols of the four symbols, respectively; the fourth SL PRS resource can occupy the subcarrier sets {3, 7, 11}, {1, 5, 9}, {0, 4, 8}, and {2, 6, 10} in each of the 50 RBs in the first, second, third and fourth symbols of the four symbols, respectively.

[0105] A SL PRS resource may belong to a resource pool. One or more SL PRS resources may be (pre)configured in a resource pool. A resource pool (pre)configured with SL PRS resources may be called a "positioning resource pool".

[0106] A positioning resource pool may be a "dedicated positioning resource pool" (dedicated SL PRS resource pool, or "dedicated SL PRS resource pool", or "dedicated resource pool", dedicated resource pool). A dedicated positioning resource pool may have one or more of the following characteristics:

[0107] ●The resource pool may be used for one or more operations on the SL PRS, such as part or all of transmission, reception, and measurement.

[0108] The resource pool may be used for one or more operations on the PSCCH (and, optionally, a reference signal associated with the PSCCH, such as a DMRS), such as part or all of transmission, reception, and measurement.

[0109] ● The resource pool cannot be used for one or more operations on the PSSCH (and, optionally, a reference signal associated with the PSSCH, such as DMRS), such as part or all of transmission, reception, and measurement.

[0110] ●The resource pool cannot be used for any operation on the PSSCH (and, optionally, a reference signal associated with the PSSCH, such as a DMRS), such as transmission, reception, or measurement.

[0111] A positioning resource pool may be a "shared positioning resource pool" (shared positioning resource pool, or "shared SL PRS resource pool", shared SL PRS resource pool, or "shared resource pool", shared resource pool1). A shared positioning resource pool may have one or more of the following characteristics:

[0112] ●The resource pool may be used for one or more operations on the SL PRS, such as part or all of transmission, reception, and measurement.

[0113] The resource pool may be used for one or more operations on the PSCCH (and, optionally, a reference signal associated with the PSCCH, such as a DMRS), such as part or all of transmission, reception, and measurement.

[0114] The resource pool may be used for one or more operations on the PSSCH (and, optionally, a reference signal associated with the PSSCH, such as a DMRS), such as part or all of transmission, reception, and measurement.

[0115] ●The resource pool may be used for one or more operations on the PSFCH (eg, when PSFCH resources are (pre-)configured in the resource pool), such as part or all of transmission, reception and measurement.

[0116] A resource pool without (pre-)configured SL PRS resources may be referred to as a “non-located resource pool.” For example, a non-located resource pool may be a resource pool that is neither a dedicated located resource pool nor a shared located resource pool.

[0117] One SL PRS resource may be associated with one or more parameters, such as one or more of the following:

[0118] ●Time domain resource allocation corresponding to the SL PRS resource. For example, the time domain resource allocation may include the time domain position of the SL PRS resource (for example, represented by a starting symbol index within a time slot; for example, represented by a starting sideline symbol index within a time slot); for example, the time domain resource allocation may include the number of time domain resources occupied by the SL PRS resource (for example, represented by the number of symbols).

[0119] ● Frequency domain resource allocation corresponding to the SL PRS resource. For example, the frequency domain resource allocation may include the frequency domain position of the SL PRS resource (for example, expressed as a starting RB index; for example, expressed as a starting subchannel index); for example, the frequency domain resource allocation may include the number of frequency domain resources occupied by the SL PRS resource (for example, expressed as the number of RBs; for example, expressed as the number of subchannels). In some aspects of the present disclosure, the frequency domain resource allocation (for example, when it is used as a feature that characterizes the SL PRS resource; for example, when it is used as a parameter that identifies the SL PRS resource) may be applicable to a shared positioning resource pool (for example, only applicable to a shared positioning resource pool). In some aspects of the present disclosure, for a dedicated positioning resource pool, the frequency domain resource allocation may be the same as the frequency domain resources of the resource pool. In some aspects of the present disclosure, for a shared positioning resource pool, the frequency domain resource allocation may be the same as the frequency domain resource allocation of the PSSCH in the same time slot (for example, the PSSCH transmitted by the same UE and associated with the same PSCCH).

[0120] ●A SL PRS resource identifier (SL PRS resource identifier, or, SLPRS resourceID). In some aspects of the present disclosure, in a time slot of a dedicated positioning resource pool, a SL PRS resource can be uniquely identified by a SL PRS resource identifier. In some aspects of the present disclosure, in a time slot of a shared positioning resource pool, a SL PRS resource can be uniquely identified by a combination of a SL PRS resource identifier and a SL PRS frequency domain resource allocation. In some aspects of the present disclosure, a SL PRS resource identifier can be an integer greater than or equal to 0, or can be an integer greater than or equal to 1.

[0121] ●One or more parameters corresponding to a corresponding comb pattern, for example, one or more of the following:

[0122] ■ "Comb size" (e.g. ). For a comb of size The SL PRS resource can be used in each symbol. Specifically, for example, if Then in one symbol, the first SL PRS resource multiplexed in the comb pattern can occupy subcarriers 0, 4 and 8 in one RB, the second SL PRS resource multiplexed in the comb pattern can occupy subcarriers 1, 5 and 9 in one RB, the third SL PRS resource multiplexed in the comb pattern can occupy subcarriers 2, 6 and 10 in one RB, and the fourth SL PRS resource multiplexed in the comb pattern can occupy subcarriers 3, 7 and 11 in one RB.

[0123] ■ "Comb offset" (e.g. ). The “comb offset” may correspond to the index of the lowest subcarrier of the SL PRS resource in the first symbol it occupies (for example, represented by the index of the subcarrier in the RB). Specifically, for example, if the SL PRS resource occupies subcarriers 0, 4, and 8 in an RB in the first symbol it occupies, the comb offset corresponding to the SL PRS resource is In some aspects of the present disclosure, the "comb offsets" corresponding to different SL PRS resources multiplexed in the same comb pattern may be different from each other, and accordingly, the "comb offset" may be used to uniquely identify a SL PRS resource multiplexed in a comb pattern.

[0124] It can also be called "RE offset".

[0125] In some aspects of the present disclosure, if one SL PRS resource (for example, denoted as SL PRS resource A) and another SLPRS resource (for example, denoted as SL PRS resource B) satisfy a type 1 SL PRS resource comparison condition, then the SL PRS resource A and the SL PRS resource B may be considered to be the same SL PRS resource, wherein the type 1 SL PRS resource comparison condition may include one or more of the following items (for example, any combination in an “and” or “or” manner):

[0126] ●The SL PRS resource A and the SL PRS resource B correspond to the same time domain resource allocation. For example, the SLPRS resource A and the SL PRS resource B are in the same time slot in the same resource pool. For another example, the SL PRS resource A and the SL PRS resource B correspond to the same starting symbol in the same time slot in the same resource pool. For another example, the SLPRS resource A and the SL PRS resource B correspond to the same number of symbols.

[0127] ●The SL PRS resource A and the SL PRS resource B correspond to the same frequency domain resource allocation. For example, the SL PRS resource A and the SL PRS resource B correspond to the same starting RB (or the same starting subchannel) in the same resource pool. For another example, the SL PRS resource A and the SL PRS resource B correspond to the same number of RBs (or the same number of subchannels).

[0128] ●The SL PRS resource identifiers of the SL PRS resource A and the SL PRS resource B are the same.

[0129] ●The comb sizes of the SL PRS resource A and the SL PRS resource B are the same.

[0130] ●The comb offsets of the SL PRS resource A and the SL PRS resource B are the same.

[0131] In some aspects of the present disclosure, a SL PRS transmission (or, a corresponding SL PRS resource) in a time slot may be associated with a PSCCH transmission (or, a corresponding PSCCH resource) in the same time slot, wherein the PSCCH transmission may carry part or all of the information in the SCI associated with the SL PRS transmission (or, the corresponding SL PRS resource), wherein:

[0132] ●The SCI may indicate information related to the SL PRS transmission (or, the corresponding SL PRS resource) (e.g., frequency domain resource allocation; as another example, time domain resource allocation; as another example, SL PRS resource identifier). In addition, in some aspects of the present disclosure, the SCI may additionally indicate (or, "associated with"; or, "reserved"; or, "used for determining") information of SL PRS resources in one or more time slots later than the time slot (e.g., frequency domain resource allocation; as another example, time domain resource allocation; as another example, SL PRS resource identifier).

[0133] ●For the dedicated positioning resource pool, the SCI may correspond to a first-stage SCI format (for example, SCI format 1-B); the SCI may be carried in the PSCCH; the combination of the SL PRS transmission and the PSCCH transmission may be referred to as a PSCCH / SL PRS (or, SL PRS / PSCCH) transmission.

[0134] ●For the shared positioning resource pool, the SCI may correspond to a first-stage SCI format (for example, SCI format 1-A) and a corresponding second-stage SCI format (for example, SCI format 2-D), wherein the first-stage SCI format may be carried in the PSCCH, and the second-stage SCI may be carried in resources allocated to a PSSCH associated with the PSCCH (for example, referred to as "PSSCH resources"); the SL PRS transmission, the PSCCH transmission, and the combination of the PSSCH transmission may be referred to as a PSCCH / PSSCH / SL PRS (or, PSSCH / PSCCH / SL PRS; or, PSCCH / PSSCH; or, PSSCH / PSCCH) transmission.

[0135] In some aspects of the present disclosure, a UE performs only one SL PRS transmission in a time slot, ie, the UE does not transmit on more than one SL PRS resource in the time slot.

[0136] In some aspects of the present disclosure, a UE performs only one of "sideline transmission" (e.g., SL PRS transmission) and "sideline reception" (e.g., SL PRS reception; for example, SL PRS measurement) in a time slot. For example, if the UE performs SL PRS transmission (and its associated PSCCH transmission) in a time slot, the UE cannot monitor (or "detect") the SL PRS (and its associated PSCCH) transmitted by other UEs in the time slot.

[0137] In some aspects of the present disclosure, the SL PRS sequence r(m) corresponding to an SL PRS transmission may be a sequence based on a pseudo-random sequence c(n), for example

[0138]

[0139] Among them, c(n) can be defined as

[0140] c(n)=(x1(n+N c )+x2(n+N c ))mod 2

[0141] in,

[0142] x1(n+31)=(x1(n+3)+x1(n))mod 2

[0143] x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2

[0144] in,

[0145] ●N c Can be a predefined integer, for example, N c =1600.

[0146] ●x1(n) can be initialized to x1(0)=0, x1(1)=x1(2)=…=x1(30)=0.

[0147] ●x2(n) can be initialized by an initial value c init Completed, where c init It can be recorded as

[0148] The c init It can be defined as

[0149]

[0150] in,

[0151] ● It can indicate the number of symbols in each time slot.

[0152] ● It may represent a time slot number in a frame (for example, a time slot number in a corresponding frame to which the SL PRS sequence is mapped).

[0153] ● can represent a "SL PRS sequence identifier" (SL PRS sequence ID). In some aspects of the present disclosure, the It may be provided by a higher layer (e.g., a higher layer of the UE that performs the SL PRS transmission). In some aspects of the present disclosure, if the higher layer does not provide the Then It can be determined according to predefined rules, for example, It may be determined at least in part based on a decimal representation of a CRC of an SCI carried (or referred to as "mapped") by a PSCCH transmission associated with the SLPRS transmission.

[0154] ●l may represent the symbol number in a time slot (eg, the symbol number in a corresponding time slot to which the SL PRS sequence is mapped).

[0155] The SL PRS sequence can be mapped to the RE corresponding to the subcarrier number k and the symbol number l (for example, denoted as (k, l)) in the following manner: p，μ , where p may represent the antenna port and μ may represent the subcarrier spacing configuration):

[0156]

[0157] in,

[0158] ●m=0,1,…

[0159] ●

[0160] ●The reference point of k (eg, the subcarrier corresponding to k=0) may be subcarrier 0 of CRB 0.

[0161] ●

[0162] The RE(k, l) p，μ In the frequency domain resources occupied by the corresponding SL PRS resources (eg, one or more RBs; or, for example, one or more subchannels).

[0163] β SL-PRS An amplitude scaling factor can be expressed.

[0164] ● It can represent the comb size corresponding to the SL PRS resource. May be provided by higher layers.

[0165] ● It can represent the RE offset (or "comb offset") corresponding to the SL PRS resource. The value can be a set An element in .

[0166] ●L SL-PRS It can represent the number of symbols occupied by the SL PRS resource. SL-PRS May be provided by a higher layer. In some aspects of the present disclosure, the available (or "effective") L SL-PRS and of ) may be related to the type of resource pool where the SL PRS resource is located.

[0167] ● It can indicate the starting symbol of SL PRS resource. The determination method may be related to the type of the resource pool where the SLPRS resource is located. For example, in some aspects of the present disclosure, for a dedicated positioning resource pool, It can be provided by a higher layer; for example, in some aspects of the present disclosure, for a shared positioning resource pool, the symbol set occupied by the SL PRS resource can be mapped to the last L in the corresponding time slot SL-PRS A continuous symbol that can be used for SL PRS, wherein the conditions that a "symbol that can be used for SL PRS" should satisfy may include: the symbol is not a symbol used for PSCCH, the symbol is not a symbol used for PSSCHDMRS, and so on.

[0168] ● k' may represent a frequency offset. k' may be based at least in part on l and Accordingly, one SL PRS resource may correspond to different subcarrier sets in different symbols it occupies; in addition, in the same symbol, different subcarrier sets may be defined for comb patterns of different comb sizes.

[0169] ■If Then k′=0.

[0170] ■If Then k′=2.

[0171] ■If Then k′=1.

[0172] ■If Then k′=3.

[0173] ■……

[0174] The allocation of sideline resources may include one or more of the following:

[0175] ● Sidelink resource allocation based on network scheduling (e.g., a UE determines the resources used for sidelink transmission according to the scheduling of the base station). This may be referred to as "sidelink resource allocation mode 1" or "sidelink resource allocation scheme 1".

[0176] ● Sidelink resource allocation based on UE autonomous resource selection (e.g., a UE autonomously determines its resources for sidelink transmission). This may be referred to as "sidelink resource allocation mode 2" or "sidelink resource allocation scheme 2".

[0177] Embodiment 1

[0178] Combine the following Figure 1 To illustrate the method executed by the UE in the first embodiment of the present disclosure.

[0179] Embodiment 1 of the present disclosure may correspond to a resource subset determination process, or embodiment 1 of the present disclosure may be a part of the resource subset determination process. The resource subset determination process may be used for SL PRS resource selection, for example, SL PRS resource selection performed in a dedicated positioning resource pool in sidelink resource allocation mode 2.

[0180] Figure 1 A flowchart corresponding to the method executed by the UE according to the first embodiment of the present disclosure is shown.

[0181] like Figure 1 As shown, in the first embodiment of the present disclosure, the steps executed by the UE include: step S101 and step S103.

[0182] Specifically, in step S101, a resource subset (for example, denoted as S A，P ).

[0183] For example, according to a request (or "indication") triggered by a higher layer (such as a MAC layer) in time slot n, the resource subset S is determined. A，P , wherein the resource subset S A，P Each element in can correspond to one of the following:

[0184] ●One SL PRS resource.

[0185] ● A resource including a SL PRS resource (for example, the element may correspond to a SL PRS resource and its associated PSCCH resource). In the first embodiment of the present disclosure, for convenience, in this case, when describing the resource subset S A，P When referring to a resource in a , only the SL PRS resource in the resource is mentioned.

[0186] Higher layers can select from the resource subset S A，P Select resources for sideline transmission (e.g., SL PRS transmission; for example, PSCCH / SL PRS transmission). For example, each selected resource can be used for one SL PRS transmission; for example, each selected resource can be used for one PSCCH / SL PRS transmission; for example, each selected resource can be used for one SL PRS transmission, and the PSCCH resource associated with the resource can be used for one PSCCH transmission.

[0187] To trigger the step S101 (or to trigger the resource subset determination process), a higher layer may provide one or more parameters, for example, including one or more of the following:

[0188] ●A resource pool, for example, The resource pool Can be a dedicated positioning resource pool.

[0189] ●A set of SL PRS resource identifiers, for example, in, is the set In some aspects of the present disclosure, Can be an integer greater than or equal to 1. In some aspects of the present disclosure, Can be an integer greater than or equal to 0, for example, Can correspond to the set is the case of an empty set.

[0190] ●A priority value, for example, prio TX The prio TX Can be a Layer 1 priority value.

[0191] ● A resource reservation period (or resource reservation interval), for example, denoted by P rsvp_TX The P rsvp_TXIt can be expressed in milliseconds, or in the number of physical time slots, or in the number of logical time slots. rsvp_TX The corresponding number of logical time slots can be recorded as P' rsvp_TX .

[0192] ● A remaining positioning delay budget, denoted by Said It can be expressed in milliseconds, or in the number of physical time slots, or in the number of logical time slots.

[0193] The resource subset S A，P Each resource in the resource pool can be A SL PRS resource in.

[0194] The resource pool A set of time slots (for example, a time slot in a frame period belonging to the resource pool The set of all time slots of in is the set The number of elements in .

[0195] The collection can be in the resource pool The set of all SL PRS resource identifiers used in ). In some aspects of the present disclosure, the set Can be a (pre)configured collection.

[0196] In some aspects of the present disclosure, if the higher layer does not provide the set Then the set can be Set equal to the collection In some aspects of the present disclosure, if the set provided by a higher layer is an empty set, then the set Set equal to the collection

[0197] In some aspects of the present disclosure, if the higher layer does not provide the P rsvp_TX , then the P rsvp_TX Set to 0.

[0198] In some aspects of the present disclosure, if the higher layer does not provide the P rsvp_TX , then the P′ rsvp_TX Set to 0.

[0199] right In the resource pool Time slots in The SL PRS resource identifier is The SL PRS resource can be recorded as Among them, the time slot It may be a time slot within the first time interval.

[0200] The first time interval may be defined as [n+T1, n+T2], where

[0201] ●T1 may correspond to a predefined or (pre)configured parameter, or a value that satisfies certain conditions and is determined by the UE itself.

[0202] ●T1 can represent a time slot offset.

[0203] ●T1 can meet in, may correspond to a predefined or (pre)configured parameter; It may be determined at least in part based on the subcarrier spacing configuration μ of the corresponding SL BWP.

[0204] ●T2 may correspond to a predefined or (pre)configured parameter, or a value that satisfies certain conditions and is determined by the UE itself.

[0205] ●T2 can represent a time slot offset.

[0206] ● T2 can be based at least in part on T 2min Determine, where T 2min May correspond to a predefined or (pre)configured parameter; T 2min can be based at least in part on the prio TX For example, if Then T2 may be a value determined by the UE itself that satisfies For example, if but

[0207] The first time interval may be referred to as a "resource selection window" (or "selection window").

[0208] The SL PRS Resources It can be called a type 1 candidate resource (or, "type 1 candidate SLPRS resource", or, "type 1 candidate single slot resource", or, "type 1 candidate single slot SL PRS resource").

[0209] gather Can be a collection A subset of , where the set is in the resource pool Time slot The set consists of all SL PRS resources in It can be recorded as in, is the set The number of elements in .

[0210] In some aspects of the present disclosure, the time slot The collection It can be the set A set of SL PRS resource identifiers corresponding to all SL PRS resources in the .

[0211] In some aspects of the present disclosure, the set It can be independent of y, that is, in the resource pool In different time slots, the set same.

[0212] In some aspects of the present disclosure, the set It can be independent of y, that is, in the resource pool In different time slots, the set same.

[0213] In some aspects of the present disclosure, the set The index of each element in may be referred to as a Type 1 SL PRS resource identifier index.

[0214] In some aspects of the present disclosure, the set The index of each element in may be referred to as a Type 2 SL PRS resource identifier index.

[0215] In some aspects of the present disclosure, the order of the Type 2 SL PRS resource identifier indexes from smallest to largest may be the same as one or more of the following:

[0216] ●The collection The SL PRS resource identifiers in the table are in ascending order.

[0217] ●The collection The order in which the (pre-)configuration information of the SL PRS resources appears in the corresponding (pre-)configuration parameters (e.g., NR-SL-PRS-Resource-List).

[0218] ●The collection The order in which the (pre-)configuration information of the SL PRS resource identifiers corresponding to the SL PRS resources in the corresponding (pre-)configuration parameters (e.g., NR-SL-PRS-Resource-ID-List) appear.

[0219] In some aspects of the present disclosure, the set The index of each element in can be called a type 1SL PRS resource index.

[0220] In some aspects of the present disclosure, the set The index of each element in can be called a type 2SL PRS resource index.

[0221] In some aspects of the present disclosure, the order of Type 2 SL PRS resource indexes from small to large may be the same as one or more of the following:

[0222] ●The collection The SL PRS resource identifiers corresponding to the SL PRS resources in the table are in ascending order.

[0223] ●The collection The order in which the (pre-)configuration information of the SL PRS resources appears in the corresponding (pre-)configuration parameters (e.g., NR-SL-PRS-Resource-List).

[0224] ●The collection The order in which the (pre-)configuration information of the SL PRS resource identifiers corresponding to the SL PRS resources in the corresponding (pre-)configuration parameters (e.g., NR-SL-PRS-Resource-ID-List) appear.

[0225] In some aspects of the present disclosure, a Type 1 SL PRS resource index may be referred to as a Type 3 SL PRS resource identifier index.

[0226] In some aspects of the present disclosure, a Type 2 SL PRS resource index may be referred to as a Type 4 SL PRS resource identifier index.

[0227] In some aspects of the present disclosure, a Type 1 SL PRS resource identifier index may be referred to as a Type 3 SL PRS resource index.

[0228] In some aspects of the present disclosure, a type 2 SL PRS resource identifier index may be referred to as a type 4 SL PRS resource index.

[0229] In the resource pool Can be (pre)configured resource reservation period (resource reservation period, or resource reservation interval), where: Can be an integer greater than or equal to 0, or, It can be an integer greater than or equal to 1; a resource reservation period can be expressed in milliseconds, or in the number of physical time slots, or in the number of logical time slots.

[0230] Said The set of resource reservation periods can be recorded as The collection It may correspond to a (pre)configured parameter (e.g., reservationPeriodAllowed-Dedicated-SL-PRS-RP). The order of the elements in may correspond to the order in which the corresponding (pre) configuration information appears in the parameter reservationPeriodAllowed-Dedicated-SL-PRS-RP.

[0231] In the resource pool A time slot (for example, in, The SCI carried by a PSCCH transmission in ) may indicate (or, "associated with"; or, "used to determine") SL PRS resources, for example, are recorded in chronological order as as well as in,

[0232] ● The corresponding SCI format may be SCI format 1-B.

[0233] ● Can be an integer greater than or equal to 1.

[0234] ● Can be less than or equal to An integer, where May correspond to a predefined or (pre)configured parameter (e.g., sl-MaxNumPerReserve); Can be an integer greater than or equal to 1, for example, Another example:

[0235] ● as well as can be respectively referred to as the The first SL PRS resource indicated, the second SL PRS resource, ..., and the SL PRS resources.

[0236] ● as well as The time slots (for example, respectively denoted as as well as ) can be different, for example, Accordingly,

[0237] It can be expressed as Indicates the number of time slots.

[0238] Yes Can be a collection An element in .

[0239] Time slot The time slot may be Right now

[0240] Time slot as well as It can be said One or more fields in the A "time resource assignment" field in the time resource allocation field indicates that the time slot is in the form of TRIV (time resource indicator value, time RIV). as well as Respectively relative to the time slot The offset of as well as ).

[0241] ● It can be indicated by the TRIV.

[0242] ● as well as Each corresponding SLPRS resource index in may be a type 1 SL PRS resource index, or a type 2 SL PRS resource index, or a type 3 SL PRS resource index, or a type 4 SL PRS resource index.

[0243] ● The corresponding SL PRS resource index may be determined at least in part according to the index of the subchannel where the PSCCH transmission is located. For example, the SL PRS resource index may be equal to the index of the subchannel where the PSCCH transmission is located.

[0244] ● as well as Each corresponding SLPRS resource identifier index in may be a type 1 SL PRS resource identifier index, or a type 2 SL PRS resource identifier index, or a type 3 SL PRS resource identifier index, or a type 4 SL PRS resource identifier index.

[0245] ● The corresponding SL PRS resource identifier index may be determined at least in part according to the index of the subchannel where the PSCCH transmission is located. For example, the SL PRS resource identifier index may be equal to the index of the subchannel where the PSCCH transmission is located.

[0246] ● The corresponding SL PRS resource identifier may be determined at least in part based on an index of a subchannel where the PSCCH transmission is located. For example, the SL PRS resource identifier may be equal to an index of a subchannel where the PSCCH transmission is located.

[0247] ● as well as The SL PRS resource index (or SL PRS resource identifier index; or SL PRS resource identifier) ​​corresponding to each of the two SL PRS resources may be One or more fields in the A "Resource ID indication" field (or "resource indication" field) indicates.

[0248] ● In some aspects of the present disclosure, if Do not use the The last of SLPRS resources SL PRS resources.

[0249] ● The "resource reservation period" field in can be used to indicate a resource reservation period (for example, ), wherein the It can be the set In some aspects of the present disclosure, if the "resource reservation period" field does not exist, then

[0250] ● The "Priority" field in can be used to indicate a priority value (for example, ).

[0251] In some aspects of the present disclosure, the Indicates that the number of SL PRS resources can be greater than

[0252] In some aspects of the present disclosure, Each of part or all of k2, the The resource pool may be indicated Time slots in More than one SL PRS resource in The resource pool may be indicated Time slots in All SL PRS resources in, for example, , or by carrying the The PSCCH transmission is implicitly indicated by a predefined or (pre) configured subchannel. The resource pool may be indicated Time slots in as well as All SL PRS resources in, for example, , or by carrying the The PSCCH transmission is implicitly indicated by a predefined or (pre)configured subchannel.

[0253] The step S101 may include N S101 sub-steps, for example, are recorded in chronological order as sub-steps Substeps ..., sub-steps Among them, N S101 Can be an integer greater than or equal to 1.

[0254] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), a candidate resource set (e.g., denoted as ). The collection The number of elements in can be written as

[0255] The collection It can be a set of all type 1 candidate resources.

[0256] In executing the sub-steps Afterwards, execute the sub-step immediately following the Before the subsequent sub-step, The value can be recorded as M total，0 .

[0257] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), from the set Exclude; or, "remove" zero or one or more type 1 candidate resources from the resource.

[0258] In executing the sub-steps Afterwards, execute the sub-step immediately following the Before the subsequent sub-step, The value can be recorded as M total，1 .

[0259] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), a second time interval may be determined, for example, as in,

[0260] ●T0 may correspond to a predefined or (pre)configured parameter (eg, sl-SensingWindow).

[0261] ●T0 can represent a time slot offset.

[0262] ● May correspond to a predefined or (pre)configured parameter.

[0263] ● Can represent a time slot offset.

[0264] ● It may be determined at least in part based on the subcarrier spacing configuration μ of the corresponding SL BWP.

[0265] The second time interval may be referred to as a "sensing window". The time slots may include zero or one or more "monitored-slots" and zero or one or more "not-monitored-slots", wherein a "monitored-slot" may be a time slot in which SCI detection (or, "monitoring") is performed, and a "not-monitored-slot" may be a time slot in which SCI cannot be detected due to performing other operations (e.g., performing transmission; specifically, for example, performing SLPRS transmission; for example, performing PSCCH / SL PRS transmission).

[0266] For each "monitored time slot", the UE may perform one or more "sensing" operations, for example, including one or more of the following:

[0267] • Detecting and / or receiving an SCI in the time slot (eg, an SCI whose SCI format is SCI format 1-B).

[0268] ●Perform RSRP (Reference Signal Received Power) measurement for each received SCI (for example, perform RSRP measurement on the DMRS resource element in the PSCCH carrying the SCI, and accordingly, the RSRP measurement can be called "PSCCH-RSRP measurement").

[0269] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), one or more RSRP thresholds may be determined. For example, for a priority value (eg, a corresponding received priority value) p i and another priority value (eg, a priority value corresponding to the transmission) p j , RSRP threshold Th(p i , p j ) may be a method based at least in part on the p i and the p j A determined predefined or (pre)configured value, for example, an index p in a predefined or (pre)configured RSRP threshold set i +(p j -1)*8 corresponding elements.

[0270] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), the set S A，P Initialize to the set

[0271] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), zero or one or more resource exclusion operations may be performed, wherein in each resource exclusion operation, a resource is selected from the set S A，P Exclude zero or one or more type 1 candidate resources from the set S. A，P A type 1 candidate resource in If the type 1 resource exclusion condition is met, then the resource is selected from the set S A，P Excluded from Again, if the If the type 2 resource exclusion condition is met, then the resource is selected from the set S A，P Excluded from Again, if the If the type 3 resource exclusion condition is met, then the resource is selected from the set S A，P Excluded from

[0272] Regarding the The type 1 resource exclusion condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0273] Time slot It is a "time slot that is not monitored".

[0274] ●For the collection Any resource reservation period in in and the SL PRS resource identifier set Any SL PRS resource identifier in and a hypothetical (hypothetical) in the time slot SCI received in the The type 1 resource overlap condition is established, wherein the type 1 control information condition may include one or more of the following items (for example, any combination in an "and" or "or" manner):

[0275] ■ The resource reservation period indicated by the "Resource reservation period" field in Equal to the Right now

[0276] ■ The Resource Reservation Period field in

[0277] ■ The number of SL PRS resources indicated in Equal to a predefined or (pre)configured value. For example, Another example: Another example:

[0278] ■ The number of time slots indicated in is equal to a predefined or (pre)configured value (eg, 1; or 2; or 3).

[0279] ■ The number of time slots indicated in is equal to 1, and the indicated time slot is the time slot

[0280] ■ The first SL PRS resource indicated in is the time slot The SL PRS resource identifier is the SL PRS resources.

[0281] ■ The SL PRS resource indicated in includes the time slot The SL PRS resource identifier is the SL PRS resources.

[0282] Regarding the The type 2 resource exclusion condition may include one or more of the following (for example, any combination in the form of "and" or "or"):

[0283] Time slot It is a "time slot that is not monitored".

[0284] ●For the collection Any resource reservation period in in ), and the SL PRS resource collection Any SL PRS resource in and a hypothetical time slot SCI received in the The type 1 resource overlap condition is met, wherein the type 2 control information condition may include one or more of the following (for example, any combination in an "and" or "or" manner):

[0285] ■ The resource reservation period indicated by the "Resource reservation period" field in Equal to the Right now

[0286] ■ The Resource Reservation Period field in

[0287] ■ The number of SL PRS resources indicated in Equal to a predefined or (pre)configured value. For example, Another example: Another example:

[0288] ■ The number of time slots indicated in is equal to a predefined or (pre)configured value (eg, 1; or 2; or 3).

[0289] ■ The number of time slots indicated in is equal to 1, and the indicated time slot is the time slot

[0290] ■ The first SL PRS resource indicated in is the SL PRS resource

[0291] ■ The SL PRS resources indicated in include the SL PRS resources

[0292] Regarding the The type 3 resource exclusion condition may include one or more of the following (for example, any combination in the form of "and" or "or"):

[0293] Time slot It is a "time slot that is not monitored".

[0294] ●For the collection Any resource reservation period in in ), and a hypothetical time slot SCI received in the The type 1 resource overlap condition is satisfied, wherein the type 3 control information condition may include one or more of the following (for example, any combination in an “and” or “or” manner):

[0295] ■ The resource reservation period indicated by the "Resource reservation period" field in Equal to the Right now

[0296] ■ The Resource Reservation Period field in

[0297] ■ The number of time slots indicated in is equal to a predefined or (pre)configured value (eg, 1; or 2; or 3).

[0298] ■ The number of time slots indicated in is equal to 1, and the indicated time slot is the time slot

[0299] ■ The SL PRS resource indicated in is the time slot All SL PRS resources in.

[0300] ■ The SL PRS resources indicated in include the time slot All SL PRS resources in.

[0301] ■ The SL PRS resource indicated in is as well as

[0302] ■ The SL PRS resources indicated in include as well as

[0303] ■ Indicated in the time slot The SL PRS resources in as well as

[0304] ■ Indicated in the time slot SL PRS resources include as well as

[0305] ■ The SL PRS resource indicated in is the set All SL PRS resources in.

[0306] ■ The SL PRS resources indicated in include the set All SL PRS resources in.

[0307] ■ Indicated in the time slot The SL PRS resource is the collection All SL PRS resources in.

[0308] ■ Indicated in the time slot The SL PRS resources include the collection All SL PRS resources in.

[0309] ■ The SL PRS resource indicated in is the time slot In the collection All SL PRS resource identifiers in the SL PRS resource list correspond to the SL PRS resources respectively.

[0310] ■ The SL PRS resources indicated in include the time slot In the collection All SL PRS resource identifiers in the SL PRS resource list correspond to the SL PRS resources respectively.

[0311] ■ Indicated in the time slot The SL PRS resource is the time slot In the collection All SL PRS resource identifiers in the SL PRS resource list correspond to the SL PRS resources respectively.

[0312] ■ Indicated in the time slot The SL PRS resources in the In the collection All SL PRS resource identifiers in the SL PRS resource list correspond to the SL PRS resources respectively.

[0313] The type 1 resource overlap condition may include one or more of the following (for example, any combination in an “and” or “or” manner):

[0314] ● The first reference SL PRS resource set overlaps with the second reference SL PRS resource set. For example, at least one SL PRS resource in the first reference SL PRS resource set and one SLPRS resource in the second reference SL PRS resource set are the same SL PRS resource (for example, the two SL PRS resources are in the resource pool In the same time slot in the resource pool, and corresponding to the same SL PRS resource identifier; for example, the two SL PRS resources are in the resource pool in the same time slot, and corresponds to the same frequency domain resource allocation, and corresponds to the same SL PRS resource identifier).

[0315] ● The first reference SL PRS time slot set overlaps with the second reference SL PRS time slot set. For example, at least one time slot in the first reference SL PRS time slot set and one time slot in the second reference SL PRS time slot set are in the same time slot.

[0316] The first reference SL PRS time slot set may be a set of time slots where each SLPRS resource in the first reference SL PRS resource set is located. The second reference SL PRS time slot set may be a set of time slots where each SL PRS resource in the second reference SL PRS resource set is located.

[0317] In the resource pool Time slots in received (e.g., actually received; or, for example, assumed to be received) , the first reference SL PRS resource set may include SL PRS resources determined respectively according to one or more of the following items:

[0318] ● (One or more) SL PRS resources indicated in.

[0319] ● For q = 1, 2, ..., Q, assuming that in time slot received in (one or more) SL PRS resources indicated in the same SCI.

[0320] ■ This (or these) SL PRS resources may be applicable to (or, applicable to and only applicable to) the The situation where the "resource reservation period" field exists.

[0321] ■In some aspects of the present disclosure, can be equal to the The resource reservation period indicated by the "Resource reservation period" field in

[0322] ■In some aspects of the present disclosure, can be equal to the The resource reservation period indicated by the "Resource reservation period" field in The corresponding number of logical time slots.

[0323] ■In some aspects of the present disclosure, Q can be based at least in part on n0, m, and T scal part or all of the determination, for example, if and but Otherwise Q = 1, where

[0324] ◆If the time slot n belongs to the resource pool The time slot set Time Slot can be defined as the time slot n, otherwise the time slot It can be defined as the time after the time slot n that belongs to the set The first time slot.

[0325] ◆T scal It can be the number of milliseconds corresponding to T2.

[0326] For the set S A，P A type 1 candidate resource in And satisfy j∈{0, 1, ..., C resel +1} (for example, for j = 0, 1, ..., C resel -1; for j = 1, 2, ..., C resel ), the second reference SL PRS resource set may include type 1 candidate resources Among them, C resel can be based at least in part on Determine (for example, ),in, May correspond to a parameter provided by a higher layer. In some aspects of the present disclosure, if the higher layer does not provide the Then the C resel Can be set to a predefined value (for example, C resel =1).

[0327] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), the resource subset S may be based at least in part on A，P The number of elements in (for example, denoted as ) performs one or more operations, for example, if the Less than X0·M total，ref , then the set S A，P Initialize (or reinitialize) the set In some aspects of the present disclosure, the It can also be called the resource subset S A，P The number of elements "remaining" in (after excluding zero or one or more elements).

[0328] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), zero or one or more resource exclusion operations may be performed, wherein in each resource exclusion operation, a resource is selected from the set S A，P Exclude zero or one or more type 1 candidate resources from the set S. A，P A type 1 candidate resource in If the resource exclusion condition of type 4 is met, then the resource is excluded from the set S A，P Excluded from

[0329] Regarding the The type 4 resource exclusion condition may include one or more of the following (for example, any combination in the form of "and" or "or"):

[0330] Time slot It is a "monitored time slot".

[0331] The UE is in the time slot A SCI satisfying the conditions of type 4 control information is received The type 4 control information condition may include one or more of the following items (for example, any combination in the form of "and" or "or"):

[0332] ■ The corresponding SCI format is SCI format 1-B.

[0333] ■ The "Resource Reservation Period" field in the SYSCONFD (if present) indicates a resource reservation period value.

[0334] ■ The "Priority" field in the

[0335] ●For the The RSRP measurement performed is above a threshold

[0336] ● The type 1 resource overlap condition is met.

[0337] In some aspects of the present disclosure, in sub-step (in It is a satisfying An integer such as ), the resource subset S may be based at least in part on A，P The number of elements in Perform one or more actions, for example, if the Less than X0·M total，ref , then each priority value combination (p i , p j ) corresponds to the threshold value Th(p i , p j ) increments by X1 dB and then jumps to the sub-step Here, X1 may be a predefined or (pre)configured value; X1 may be an integer, for example, X1=3.

[0338] In addition, in step S103, the resource subset S is reported to a higher layer. A，P .

[0339] In the first embodiment of the present disclosure, "SL PRS transmission" can be replaced by "PSCCH / SL PRS transmission".

[0340] In the first embodiment of the present disclosure, the set It can be the set

[0341] In the first embodiment of the present disclosure, the set It can be the set

[0342] In the first embodiment of the present disclosure, the time slot The collection It can be in the resource pool (pre) configured in the time slot The set of all SL PRS resource identifiers.

[0343] In the first embodiment of the present disclosure, the time-hidden The collection Can be a collection

[0344] In the first embodiment of the present disclosure, the set can be in the resource pool Time slot The collection of all SL PRS resources in.

[0345] In the first embodiment of the present disclosure, the set can be in the resource pool Time slot In the set, the SL PRS resource identifier The collection of all SL PRS resources in the .

[0346] In the first embodiment of the present disclosure, the X0 may be a signal at least partially based on the prio TX A certain predefined or (pre)configured value.

[0347] In the first embodiment of the present disclosure, the M total，ref can be equal to the M total，0 .

[0348] In the first embodiment of the present disclosure, the M total，ref can be equal to the M total，1 .

[0349] Embodiment 1 of the present disclosure may be applicable to (or, applicable to and only applicable to) sidelink resource allocation mode 2.

[0350] Embodiment 1 of the present disclosure may be applicable to (or, applicable to and only applicable to) full sensing.

[0351] Embodiment 1 of the present disclosure may be applicable to (or applicable to and only applicable to) a dedicated positioning resource pool (i.e., the resource pool is a dedicated positioning resource pool).

[0352] Embodiment 1 of the present disclosure may be applicable to (or, applicable to and only applicable to) operations without shared spectrum channel access (eg, operations on licensed spectrum).

[0353] Embodiment 1 of the present disclosure may be applicable to (or, applicable to and only applicable to) operations with shared spectrum channel access (eg, operations on unlicensed spectrum).

[0354] Thus, according to the first embodiment, the present disclosure provides a method for determining a dedicated positioning resource pool. The SL PRS resource identifier is from the set When the SL PRS resource subset is set, for a time slot that is not monitored For the resource pool Each resource reservation period (pre) configured in Each SL PRS resource identifier in the time slot The corresponding SL PRS resource combination in the time slot determines a hypothetical The SCI received in the UE is excluded, and all periodic and non-periodic resources indicated by the SCI are excluded. This greatly reduces the probability of conflict with SL PRS resources reserved by other UEs in the resources finally selected for SL PRS transmission, and improves the performance of SL PRS resource selection.

[0355] Modifications

[0356] Next, use Figure 2 A user equipment as a variation example that can execute the method executed by the user equipment described in detail above in the present disclosure is described.

[0357] Figure 2 is a block diagram showing a user equipment involved in the present disclosure.

[0358] like Figure 2 As shown, the user equipment UE20 includes a processor 201 and a memory 202. The processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 202 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memories, etc. The memory 202 stores program instructions. When the instructions are executed by the processor 201, the above method performed by the user equipment described in detail in the present disclosure may be executed.

[0359] The method of the present invention and the user equipment involved have been described above in conjunction with the preferred embodiments. It will be appreciated by those skilled in the art that the method shown above is only exemplary, and the embodiments described above can be combined with each other without contradiction. The method of the present invention is not limited to the steps and sequence shown above. The user equipment shown above may include more modules. The various identifiers shown above are only exemplary and not restrictive, and the present invention is not limited to the specific information elements used as examples of these identifiers. Those skilled in the art may make many changes and modifications based on the teachings of the illustrated embodiments.

[0360] Those skilled in the art should understand that any set is a subset of itself; the empty set is a subset of any set; part or all of a mathematical expression, mathematical equation, or mathematical inequality can be simplified, transformed, or rewritten to a certain extent (for example, merging constant terms, exchanging two addition terms, exchanging two multiplication terms, changing the sign of a term and moving it from the left side of the equation or inequality to the right side, changing the sign of a term and moving it from the right side of the equation or inequality to the left side, etc.), and the mathematical expressions, mathematical equations, or mathematical inequalities before and after simplification, transformation, or rewriting can be considered to be equivalent.

[0361] It should be understood that the above embodiments of the present disclosure can be implemented by software, hardware, or a combination of software and hardware. For example, the various components inside the user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and the like.

[0362] In the present disclosure, "base station" may refer to a mobile communication data and / or control exchange center with a certain transmission power and a certain coverage area, for example, including functions such as resource allocation scheduling, data reception and transmission, etc. "User equipment" may refer to a user mobile terminal, for example, including mobile phones, notebooks, etc., which can communicate wirelessly with a base station or a micro base station.

[0363] In addition, the embodiments of the present disclosure disclosed herein can be implemented on a computer program product. More specifically, the computer program product is a product as follows: having a computer-readable medium, a computer program logic is encoded on the computer-readable medium, and when executed on a computing device, the computer program logic provides relevant operations to implement the above-mentioned technical solutions of the present disclosure. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present disclosure. This arrangement of the present disclosure is typically provided as software, code and / or other data structures arranged or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), a floppy disk or a hard disk, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images in one or more modules, shared databases, etc. Software or firmware or such a configuration can be installed on a computing device so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present disclosure.

[0364] In addition, each functional module or each feature of the user equipment used in each of the above embodiments can be implemented or executed by a circuit, and the circuit is generally one or more integrated circuits. The circuit designed to perform the various functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC) or a general-purpose integrated circuit, a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, or a discrete hardware component, or any combination of the above devices. The general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller or state machine. The above-mentioned general-purpose processor or each circuit may be configured by a digital circuit, or may be configured by a logic circuit. In addition, when, due to the advancement of semiconductor technology, an advanced technology that can replace the current integrated circuit appears, the present disclosure may also use the integrated circuit obtained using the advanced technology.

[0365] Although the present disclosure has been illustrated above in conjunction with the preferred embodiments of the present disclosure, it will be understood by those skilled in the art that various modifications, substitutions and changes may be made to the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be limited by the above embodiments, but by the attached claims and their equivalents.

Claims

1. A method performed by a user equipment UE, characterized in that include: According to the instructions of the higher layer, a SL PRS resource subset S A，P Initializes a resource selection window to contain each resource belonging to a dedicated positioning resource pool. The SL PRS resource identifier set in the time slot The set of SL PRS resources corresponding to each SL PRS resource identifier in , and From the SL PRS resource subset S A，P Exclude zero, one or more SL PRS resources from the corresponding sensing window, where for each time slot that is not monitored in the corresponding sensing window, Each in the resource pool The resource reservation period configured in The SL PRS resource identifier in the time slot corresponds to SLPRS resources in the time slot, and a hypothetical The SCI received from the SL PRS resource subset S indicates the resource reservation period and the SL PRS resource. A，P excluding SL PRS resources overlapping with any aperiodic or periodic SL PRS resource indicated by the SCI, and Report the resource subset S to higher layers A，P .

2. A user equipment, comprising: processor; as well as Memory, which stores instructions, Wherein, when the instructions are executed by the processor, the method according to claim 1 is performed.

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